Confluence Cloud Search Platform

Confluence Cloud Search has been revamped with a new, scalable, and improved platform powered by AWS-managed Elasticsearch. This platform aims to provide a unified search experience across Atlassian products, offering better operational stability, improved relevance, enhanced scalability for large customer growth, reduced monolithic code complexity, and centralized search expertise. Key architectural changes include multi-region availability with zero-downtime failover, efficient sharding strategies based on tenant size to handle noisy neighbors and optimize performance, and an optimized permission checking mechanism that transforms linear time complexity to logarithmic time complexity.